The characters \* are not part of the STDOUT name, and they are not there just for fun. They turn a bareword (no sigil) filehandle into a filehandle reference. 
$ctx->cat(\*FILE, 'http://127.0.0.1/file.txt', 'HEAD');

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You have to open the filehandle first, though:

open FILE, '>', 'file.txt.HEAD' or die $!;

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Or, use lexical filehandles: 

open my $FH, '>', 'file.txt.HEAD' or die $!;
$ctx->cat($FH, 'http://127.0.0.1/file.txt', 'HEAD');

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لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re: Use SVN::Client to "cat" a file on svn by choroba
in thread Use SVN::Client to "cat" a file on svn by fouinix

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